Simplified modeling and analysis method for skyscrapers with outrigger system

Structures ◽  
2021 ◽  
Vol 33 ◽  
pp. 1033-1050
Author(s):  
Cossi Prosper Dagbo Amoussou ◽  
Honggang Lei ◽  
Wael Alhaddad ◽  
Yahia Halabi
Author(s):  
Kai-Lu Wang ◽  
Yan Jin

Functional design is a process in engineering design that dominates the key features of the result to be developed. Designing good functions that both satisfies the requirements and leads to better results is a challenge due to uncertainties on the consequences of the selected functions, and the lack of analysis methods for identifying the properties of function structures. Therefore, extensive experiences are usually required for functional design. This research argues that the physical relationships among the resulting components of a design are the consequences of functional dependencies developed during the functional design process. Therefore based on the understanding of functions and functional dependencies, a reasoning procedure can be developed to predict the performance properties of the design so that the effectiveness of the functional design can be evaluated at an early design stage. This paper proposes a dependency-based function modeling and analysis method that can be applied to represent and assess functions and function structures at the functional design stage. Designers can predict the properties of the functions they designed without having to have similar design experiences. An application software is also developed to implement the method and demonstrate its effectiveness.


IEEE Access ◽  
2019 ◽  
Vol 7 ◽  
pp. 26241-26254 ◽  
Author(s):  
Guyu Zhao ◽  
Guoyan Huang ◽  
Hongdou He ◽  
Qian Wang

2012 ◽  
Vol 602-604 ◽  
pp. 1757-1760
Author(s):  
Qiang Huang ◽  
Kun Wei

The rotation accuracy of the machine spindle is an important accuracy index, and has numerous influence factors. According to the structure characteristic of the spindle system, an integrated model of the spindle rotation error is established in this paper. By this model, the impact law and cumulative effect of various error sources on spindle rotation accuracy can be analyzed. Taking the lathe spindles as an example, the modeling and analysis method for spindle error are introduced. Visualization of spindle center track is achieved by programming.


1998 ◽  
Vol 1 (3) ◽  
pp. 203-218 ◽  
Author(s):  
J.L. Peng ◽  
D.V. Rosowsky ◽  
A.D. Pan ◽  
W.F. Chen ◽  
S.L. Chan

This paper examines the effect of concrete placement patterns on temporary structures. Specific consideration is given to scaffold shoring systems used in construction. A simplified two-dimensional portal frame model is developed to investigate the system stability for different load patterns corresponding to different concrete placement procedures. Then, a three-dimensional structural model is developed to identify the location and magnitude of the critical formwork load both during and after concrete placement. A second-order elastic analysis of the system is performed to determine the critical loads. For the sway case, there exists a unique critical (collapse) load which is independent of load pattern (placement paths) and partial loads. However, the amount of lateral deflection varies for different load patterns or paths. Thus, a single limiting lateral deflection of the temporary structure may not be suitable as an early-warning index signaling imminent collapse during construction. An analysis based on the concept of influence surfaces confirms that an equivalent uniform load may be used in design to account for pattern loading during construction.


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